Optimal Audio Cuboid 5 Passive Loudspeaker 50W White
Optimal Audio Cuboid 5 Passive Loudspeaker 50W White £89.00 inc VAT
£74.17 ex VAT
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Optimal Audio Cuboid 5TX Passive Loudspeaker 50W 100V White
Optimal Audio Cuboid 5TX Passive Loudspeaker 50W 100V White £105.00 inc VAT
£87.50 ex VAT
Optimal Audio

Optimal Audio Cuboid 5TX Passive Loudspeaker 50W 100V

SKU: CUBOID5-BTX
Optimal Audio Cuboid 5TX Passive Loudspeaker 50W 100V
Optimal Audio Cuboid 5TX Passive Loudspeaker 50W 100V
Optimal Audio Cuboid 5TX Passive Loudspeaker 50W 100V
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    £105.00 inc VAT
    £87.50 ex VAT

    Usually delivered in 1–2 working days
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    3 Year Manufacturer Warranty Included
    About Stage Supply
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    About this Product

    The Optimal Audio Cuboid 5TX is a two-way loudspeaker with an integrated 70V/100V transformer, designed for distributed commercial audio systems. Featuring a 5.25-inch LF driver and 0.75-inch silk dome tweeter with 50W programme power, it delivers clear, full-range sound across long cable runs in bars, restaurants, hotels, and retail environments. Also available in white.

    Power Handling
    50W
    Programme

    LF Driver
    5.25″
    Low Frequency

    HF Driver
    0.75″
    Silk Dome

    Line Voltage
    70V / 100V
    Transformer

    70V / 100V Transformer

    This TX model includes an integrated 70V/100V line transformer with rotary switch tap selection, allowing you to set the power draw per speaker across a distributed audio system. This makes it straightforward to balance coverage across zones with long cable runs, using a single amplifier channel to drive multiple speakers in parallel.

    Features
    ✓
    5.25″ LF driver with 0.75″ silk dome HF for smooth, natural reproduction
    ✓
    Integrated 70V/100V transformer with rotary tap selection
    ✓
    50W programme power for mid-sized commercial spaces
    ✓
    Portrait or landscape mounting orientation
    ✓
    IP54-rated with optional outdoor connector cover (CIPKIT)
    ✓
    Compatible with Optimal Audio SmartAmp DSP-optimised amplification
    ✓
    Works with Zone controllers, ZonePad wall panels, and WebApp
    ✓
    Black finish for unobtrusive integration

    Note

    The optional CIPKIT connector cover is required to achieve the full IP54 rating for outdoor or exposed installations. For low-impedance installations not requiring a transformer, see the standard Cuboid 5.

    Specifications
    Model Cuboid 5TX Black
    SKU CUBOID5-BTX
    Speaker Type Two-Way with 70V/100V Transformer
    LF Driver 5.25″
    HF Driver 0.75″ Silk Dome
    Power Handling 50W
    Line Voltage 70V / 100V
    Tap Selection Rotary Switch
    Ingress Protection IP54 (with optional connector cover)
    Mounting Portrait / Landscape
    Colour Black

    More Information

    • 8 ohm or 70/100V line operation
    • Discreet size, high performance
    • Portrait or landscape mounting options
    • Wall bracket included
    • Max SPL 105dB (continuous) 111dB (peak)
    • 130° horizontal x 120° vertical coverage
    • IP54 for outdoor use with accessory terminal cover

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    Frequently Asked Questions

    Stage Supply is the retail arm of Moventra Group. We’re a working touring and events production company founded in 2020 by sound engineers with many years of experience. 

    We’re very selective about the products we sell. Everything we supply we use ourselves on our tours, events and productions. This means we can offer a level of buying advice and aftersales support that can’t be beaten.

    We’re official dealers of brands such as Allen & Heath, Audio Technica and sE Electronics. We also stock other leading brands including Shure, Sennheiser, Martin Audio and Chauvet Professional.

    We accept Debit & Credit Cards, Apple Pay, Android Pay and Paypal. We also offer finance through Paypal Credit and Klarna.

    Business Customers can choose to receive a Proforma Invoice on checkout to pay by bank transfer.

    Yes. We run a AV Production business (Moventra) and have AV Engineers on hand to provide advice and technical support during our operating hours.

    The quickest way to contact us for advice and support is through WhatsApp or Email.

    Stage Supply is a division of Moventra, which is a AV Production Company. We share staff and our premises with Moventra which allows us to keep our costs down.

    As AV Engineers ourselves, our mission is to provide high quality equipment to other AV Professionals at reasonable prices.

    Please see our Returns page for information on our returns policy and to start a return online.

    Generally if you change your mind you can return your item for a full refund within 14 days of purchase - as long as the product is unopened and unused. 

    If an item is faulty or damaged we will arrange collection free of charge and repair/replace it as quickly as possible.

    Estimated delivery times are shown on the product page. For items in stock we aim to get your order to you within 1 - 3 working days.

    Some items are ordered directly from the manufacturer. These may have longer lead times which will be estimated on the product page. Please contact us for a more accurate lead time.

    Yes. You can collect from our Production Space in Wembley, London. Please note that only a small range of our products are stored here, items showing as in stock may need to be transferred from our warehouse. If the item is in stock it will usually be ready to collect the same or next working day.

    Yes. Through Moventra we can install across the UK. 

    We've been involved in installation projects ranging from large capacity Music Venues to Coffee Shops, Churches and Council Offices.

    Please click here to contact us to learn more about our installation service.